The Program for Pandemic Preparedness by Ventilation, P3Venti, leads, collects and distributes scientific research on the influence and potential impact of ventilation on aerogenic pathogen spread, exposure risk and infection control.

P3Venti has an expected duration of three years (August 2022 – July 2025), is coordinated by TNO, and carried out by a consortium of research institutes and partners financed by the Dutch ministry of health (VWS).

For more in-depth information on the program, please refer to the program summary.

The goal of P3Venti is to support the government and (not-for-profit) stakeholders in their policy and decision making by generating scientific, actionable knowledge. Three key areas can be identified in this task:

Symposium P3Venti

Wednesday the 28th of February 2024 the first symposium of P3Venti took place in Zoetermeer.

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A critical part of P3Venti is fundamental scientific research. Scientific publications will be collected on a database on this website as they are published.

Our research aims to build knowledge in several key areas:

Research areas

Technical research

This research includes studying exposure risks and the effect of ventilation measures, observations in operational conditions such as elderly care homes, interviews with stakeholders and occupants, computer modeling and experimental particle dispersion and airflow vector research both in a mock-up and in-situ.

  • What contribution do ventilation and the use of air purifiers etc. make to preventing infection?

  • Influence of indoor environmental conditions, such as humidity and temperature.

Implementation and policy-making

Knowledge from the other two areas is collected and combined with social-scientific methods to better transfer the knowledge to, and facilitate the implementation of measures for the users.

  • Prioritization. In which sectors of society is (investing in) ventilation as a prevention measure most needed and most effective?

  • Proportionality and cost/benefit of application of ventilation.

Biomedical research

Investigation of viability and infectivity of virus-bearing particles (especially related to SARS-CoV-2) in relation to time and size distribution. Focus on literature studies and experimental research.

  • The contribution of aerogenic transmission to the total transmission of a virus.

  • The dose-response relationship in air, i.e. how many virus particles are needed to cause infection through aerogenic transmission?


To ensure the accessibility and dissemination of the scientific findings and knowledge, P3Venti is establishing a knowledge network.

The core of the knowledge network are the members of a broad scientific sounding board, and the researchers within the program. From this core, the network will expand and grow as the program matures, facilitating partnerships and collaboration between related scientific programs and projects, such as PDPC, CLAIRE and MIST; as well as promoting collaboration and feedback with healthcare institutions and regulatory bodies.

With this network, P3Venti not only provides answers to the specific research questions defined for this program, but also contributes to the strengthening of the knowledge base needed to identify and effectively address new research questions and needs in a timely manner.

The network will increasingly expand to include delegated professionals connected to long-term care and possibly from other social sectors. As such, P3Venti is actively looking to make national and international connections with interested scientists and organizations to start exchanging knowledge and expertise. In this spirit, we would like to invite and encourage you to reach out and contact us if you have any interest in joining the Network by attending our symposium, joining our LinkedIn group, following the LinkedIn information page, or sending any questions to penvoerder-p3venti@tno.nl.

An initial overview of current key players within the knowledge network can be found on the network page.



Based on the knowledge gained and collected through P3Venti, we strive to provide practical measures, methods and guidelines to help healthcare institutions and regulatory bodies to be better prepared for the next pandemic. A vital aspect is to as much as possible ensure healthy and enjoyable living conditions under these measures. Here you can find questions, answers and tips on how ventilation and air purification can contribute to reducing the spread of viruses through the air.

Questions and answers

Effectiveness of ventilation and air purifiers

How is my ventilation system performing?

Viral transmission

What can I do to reduce virus transmission?


Contact: penvoerder-p3venti@tno.nl

Ir. Lisette Rueb

Program manager, senior project manager

Specialized in the organization of large, innovative projects with various stakeholders.

Dr. Ing. Roberto Traversari MBA

Secretary soundboard group, Scientific lead P3Venti

Researcher and consultant at TNO (Buildings & Energy Systems) in the field of contamination control, energy/sustainability and the physical environment of the hot floor.